Home / 2,148.17-2,965.07-1,557.59

Finding the Fourth Proportional to 2,148.17, 2,965.07 and 1,557.59

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Solution

The fourth proportional to 2,148.17, 2,965.07 and 1,557.59 is: 2,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.17 : 2,965.07 = 1,557.59 : x
  2. Step 2: Convert to fraction form
    2,148.17/2,965.07 = 1,557.59/x
  3. Step 3: Cross multiply
    2,148.17x = 2,965.07 × 1,557.59
  4. Step 4: Simplify right side
    2,148.17x = 4,618,355.59
  5. Step 5: Solve for x
    x = 4,618,355.59/2,148.17
  6. Step 6: Final answer
    x = 2,149.90

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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.