Home / 1,332.77-1,985.76-1,258.25

Finding the Fourth Proportional to 1,332.77, 1,985.76 and 1,258.25

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Solution

The fourth proportional to 1,332.77, 1,985.76 and 1,258.25 is: 1,874.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.77 : 1,985.76 = 1,258.25 : x
  2. Step 2: Convert to fraction form
    1,332.77/1,985.76 = 1,258.25/x
  3. Step 3: Cross multiply
    1,332.77x = 1,985.76 × 1,258.25
  4. Step 4: Simplify right side
    1,332.77x = 2,498,582.52
  5. Step 5: Solve for x
    x = 2,498,582.52/1,332.77
  6. Step 6: Final answer
    x = 1,874.73

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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.