Home / 2,851.01-4,276.40-876.57

Finding the Fourth Proportional to 2,851.01, 4,276.40 and 876.57

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Solution

The fourth proportional to 2,851.01, 4,276.40 and 876.57 is: 1,314.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.01 : 4,276.40 = 876.57 : x
  2. Step 2: Convert to fraction form
    2,851.01/4,276.40 = 876.57/x
  3. Step 3: Cross multiply
    2,851.01x = 4,276.40 × 876.57
  4. Step 4: Simplify right side
    2,851.01x = 3,748,559.57
  5. Step 5: Solve for x
    x = 3,748,559.57/2,851.01
  6. Step 6: Final answer
    x = 1,314.82

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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.