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Finding the Fourth Proportional to 2,888.71, 4,332.62 and 940.90

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Solution

The fourth proportional to 2,888.71, 4,332.62 and 940.90 is: 1,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.71 : 4,332.62 = 940.90 : x
  2. Step 2: Convert to fraction form
    2,888.71/4,332.62 = 940.90/x
  3. Step 3: Cross multiply
    2,888.71x = 4,332.62 × 940.90
  4. Step 4: Simplify right side
    2,888.71x = 4,076,557.45
  5. Step 5: Solve for x
    x = 4,076,557.45/2,888.71
  6. Step 6: Final answer
    x = 1,411.20

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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.