Home / 1,154.08-1,722.18-1,031.02

Finding the Fourth Proportional to 1,154.08, 1,722.18 and 1,031.02

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Solution

The fourth proportional to 1,154.08, 1,722.18 and 1,031.02 is: 1,538.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.08 : 1,722.18 = 1,031.02 : x
  2. Step 2: Convert to fraction form
    1,154.08/1,722.18 = 1,031.02/x
  3. Step 3: Cross multiply
    1,154.08x = 1,722.18 × 1,031.02
  4. Step 4: Simplify right side
    1,154.08x = 1,775,602.02
  5. Step 5: Solve for x
    x = 1,775,602.02/1,154.08
  6. Step 6: Final answer
    x = 1,538.54

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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.