Home / 2,420.77-3,341.01-1,426.36

Finding the Fourth Proportional to 2,420.77, 3,341.01 and 1,426.36

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Solution

The fourth proportional to 2,420.77, 3,341.01 and 1,426.36 is: 1,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.77 : 3,341.01 = 1,426.36 : x
  2. Step 2: Convert to fraction form
    2,420.77/3,341.01 = 1,426.36/x
  3. Step 3: Cross multiply
    2,420.77x = 3,341.01 × 1,426.36
  4. Step 4: Simplify right side
    2,420.77x = 4,765,483.02
  5. Step 5: Solve for x
    x = 4,765,483.02/2,420.77
  6. Step 6: Final answer
    x = 1,968.58

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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.