Home / 1,712.66-2,555.87-1,528.13

Finding the Fourth Proportional to 1,712.66, 2,555.87 and 1,528.13

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Solution

The fourth proportional to 1,712.66, 2,555.87 and 1,528.13 is: 2,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.66 : 2,555.87 = 1,528.13 : x
  2. Step 2: Convert to fraction form
    1,712.66/2,555.87 = 1,528.13/x
  3. Step 3: Cross multiply
    1,712.66x = 2,555.87 × 1,528.13
  4. Step 4: Simplify right side
    1,712.66x = 3,905,681.20
  5. Step 5: Solve for x
    x = 3,905,681.20/1,712.66
  6. Step 6: Final answer
    x = 2,280.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.