Home / 2,931.04-4,044.72-1,689.44

Finding the Fourth Proportional to 2,931.04, 4,044.72 and 1,689.44

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Solution

The fourth proportional to 2,931.04, 4,044.72 and 1,689.44 is: 2,331.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.04 : 4,044.72 = 1,689.44 : x
  2. Step 2: Convert to fraction form
    2,931.04/4,044.72 = 1,689.44/x
  3. Step 3: Cross multiply
    2,931.04x = 4,044.72 × 1,689.44
  4. Step 4: Simplify right side
    2,931.04x = 6,833,311.76
  5. Step 5: Solve for x
    x = 6,833,311.76/2,931.04
  6. Step 6: Final answer
    x = 2,331.36

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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.