Home / 1,557.64-2,151.36-1,032.76

Finding the Fourth Proportional to 1,557.64, 2,151.36 and 1,032.76

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Solution

The fourth proportional to 1,557.64, 2,151.36 and 1,032.76 is: 1,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.64 : 2,151.36 = 1,032.76 : x
  2. Step 2: Convert to fraction form
    1,557.64/2,151.36 = 1,032.76/x
  3. Step 3: Cross multiply
    1,557.64x = 2,151.36 × 1,032.76
  4. Step 4: Simplify right side
    1,557.64x = 2,221,838.55
  5. Step 5: Solve for x
    x = 2,221,838.55/1,557.64
  6. Step 6: Final answer
    x = 1,426.41

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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.