Home / 1,615.02-2,228.73-906.77

Finding the Fourth Proportional to 1,615.02, 2,228.73 and 906.77

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Solution

The fourth proportional to 1,615.02, 2,228.73 and 906.77 is: 1,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.02 : 2,228.73 = 906.77 : x
  2. Step 2: Convert to fraction form
    1,615.02/2,228.73 = 906.77/x
  3. Step 3: Cross multiply
    1,615.02x = 2,228.73 × 906.77
  4. Step 4: Simplify right side
    1,615.02x = 2,020,934.36
  5. Step 5: Solve for x
    x = 2,020,934.36/1,615.02
  6. Step 6: Final answer
    x = 1,251.34

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.