Home / 1,560.47-2,155.41-1,374.57

Finding the Fourth Proportional to 1,560.47, 2,155.41 and 1,374.57

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Solution

The fourth proportional to 1,560.47, 2,155.41 and 1,374.57 is: 1,898.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.47 : 2,155.41 = 1,374.57 : x
  2. Step 2: Convert to fraction form
    1,560.47/2,155.41 = 1,374.57/x
  3. Step 3: Cross multiply
    1,560.47x = 2,155.41 × 1,374.57
  4. Step 4: Simplify right side
    1,560.47x = 2,962,761.92
  5. Step 5: Solve for x
    x = 2,962,761.92/1,560.47
  6. Step 6: Final answer
    x = 1,898.64

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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.