Home / 1,332.40-1,837.46-1,017.68

Finding the Fourth Proportional to 1,332.40, 1,837.46 and 1,017.68

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Solution

The fourth proportional to 1,332.40, 1,837.46 and 1,017.68 is: 1,403.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.40 : 1,837.46 = 1,017.68 : x
  2. Step 2: Convert to fraction form
    1,332.40/1,837.46 = 1,017.68/x
  3. Step 3: Cross multiply
    1,332.40x = 1,837.46 × 1,017.68
  4. Step 4: Simplify right side
    1,332.40x = 1,869,946.29
  5. Step 5: Solve for x
    x = 1,869,946.29/1,332.40
  6. Step 6: Final answer
    x = 1,403.44

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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.