Home / 1,534.35-2,117.38-835.72

Finding the Fourth Proportional to 1,534.35, 2,117.38 and 835.72

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Solution

The fourth proportional to 1,534.35, 2,117.38 and 835.72 is: 1,153.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.35 : 2,117.38 = 835.72 : x
  2. Step 2: Convert to fraction form
    1,534.35/2,117.38 = 835.72/x
  3. Step 3: Cross multiply
    1,534.35x = 2,117.38 × 835.72
  4. Step 4: Simplify right side
    1,534.35x = 1,769,532.64
  5. Step 5: Solve for x
    x = 1,769,532.64/1,534.35
  6. Step 6: Final answer
    x = 1,153.28

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Half scale
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Double scale
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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.