Home / 1,316.32-1,964.47-1,170.52

Finding the Fourth Proportional to 1,316.32, 1,964.47 and 1,170.52

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Solution

The fourth proportional to 1,316.32, 1,964.47 and 1,170.52 is: 1,746.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.32 : 1,964.47 = 1,170.52 : x
  2. Step 2: Convert to fraction form
    1,316.32/1,964.47 = 1,170.52/x
  3. Step 3: Cross multiply
    1,316.32x = 1,964.47 × 1,170.52
  4. Step 4: Simplify right side
    1,316.32x = 2,299,451.42
  5. Step 5: Solve for x
    x = 2,299,451.42/1,316.32
  6. Step 6: Final answer
    x = 1,746.88

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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.