Home / 1,569.12-2,166.36-1,010.55

Finding the Fourth Proportional to 1,569.12, 2,166.36 and 1,010.55

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Solution

The fourth proportional to 1,569.12, 2,166.36 and 1,010.55 is: 1,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.12 : 2,166.36 = 1,010.55 : x
  2. Step 2: Convert to fraction form
    1,569.12/2,166.36 = 1,010.55/x
  3. Step 3: Cross multiply
    1,569.12x = 2,166.36 × 1,010.55
  4. Step 4: Simplify right side
    1,569.12x = 2,189,215.10
  5. Step 5: Solve for x
    x = 2,189,215.10/1,569.12
  6. Step 6: Final answer
    x = 1,395.19

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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.