Home / 1,417.80-1,951.56-1,230.12

Finding the Fourth Proportional to 1,417.80, 1,951.56 and 1,230.12

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Solution

The fourth proportional to 1,417.80, 1,951.56 and 1,230.12 is: 1,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.80 : 1,951.56 = 1,230.12 : x
  2. Step 2: Convert to fraction form
    1,417.80/1,951.56 = 1,230.12/x
  3. Step 3: Cross multiply
    1,417.80x = 1,951.56 × 1,230.12
  4. Step 4: Simplify right side
    1,417.80x = 2,400,652.99
  5. Step 5: Solve for x
    x = 2,400,652.99/1,417.80
  6. Step 6: Final answer
    x = 1,693.22

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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.