Home / 1,147.20-1,582.98-675.06

Finding the Fourth Proportional to 1,147.20, 1,582.98 and 675.06

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Solution

The fourth proportional to 1,147.20, 1,582.98 and 675.06 is: 931.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.20 : 1,582.98 = 675.06 : x
  2. Step 2: Convert to fraction form
    1,147.20/1,582.98 = 675.06/x
  3. Step 3: Cross multiply
    1,147.20x = 1,582.98 × 675.06
  4. Step 4: Simplify right side
    1,147.20x = 1,068,606.48
  5. Step 5: Solve for x
    x = 1,068,606.48/1,147.20
  6. Step 6: Final answer
    x = 931.49

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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.