Home / 1,552.10-2,331.40-1,309.10

Finding the Fourth Proportional to 1,552.10, 2,331.40 and 1,309.10

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Solution

The fourth proportional to 1,552.10, 2,331.40 and 1,309.10 is: 1,966.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.10 : 2,331.40 = 1,309.10 : x
  2. Step 2: Convert to fraction form
    1,552.10/2,331.40 = 1,309.10/x
  3. Step 3: Cross multiply
    1,552.10x = 2,331.40 × 1,309.10
  4. Step 4: Simplify right side
    1,552.10x = 3,052,035.74
  5. Step 5: Solve for x
    x = 3,052,035.74/1,552.10
  6. Step 6: Final answer
    x = 1,966.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.