Home / 1,560.72-2,328.84-1,397.28

Finding the Fourth Proportional to 1,560.72, 2,328.84 and 1,397.28

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Solution

The fourth proportional to 1,560.72, 2,328.84 and 1,397.28 is: 2,084.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.72 : 2,328.84 = 1,397.28 : x
  2. Step 2: Convert to fraction form
    1,560.72/2,328.84 = 1,397.28/x
  3. Step 3: Cross multiply
    1,560.72x = 2,328.84 × 1,397.28
  4. Step 4: Simplify right side
    1,560.72x = 3,254,041.56
  5. Step 5: Solve for x
    x = 3,254,041.56/1,560.72
  6. Step 6: Final answer
    x = 2,084.96

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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.