Home / 4,818.90-6,650.10-2,931.12

Finding the Fourth Proportional to 4,818.90, 6,650.10 and 2,931.12

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Solution

The fourth proportional to 4,818.90, 6,650.10 and 2,931.12 is: 4,044.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.90 : 6,650.10 = 2,931.12 : x
  2. Step 2: Convert to fraction form
    4,818.90/6,650.10 = 2,931.12/x
  3. Step 3: Cross multiply
    4,818.90x = 6,650.10 × 2,931.12
  4. Step 4: Simplify right side
    4,818.90x = 19,492,241.11
  5. Step 5: Solve for x
    x = 19,492,241.11/4,818.90
  6. Step 6: Final answer
    x = 4,044.96

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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.