Home / 1,931.18-2,897.22-632.76

Finding the Fourth Proportional to 1,931.18, 2,897.22 and 632.76

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Solution

The fourth proportional to 1,931.18, 2,897.22 and 632.76 is: 949.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.18 : 2,897.22 = 632.76 : x
  2. Step 2: Convert to fraction form
    1,931.18/2,897.22 = 632.76/x
  3. Step 3: Cross multiply
    1,931.18x = 2,897.22 × 632.76
  4. Step 4: Simplify right side
    1,931.18x = 1,833,244.93
  5. Step 5: Solve for x
    x = 1,833,244.93/1,931.18
  6. Step 6: Final answer
    x = 949.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.