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Finding the Fourth Proportional to 2,888.16, 4,332.24 and 1,860

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Solution

The fourth proportional to 2,888.16, 4,332.24 and 1,860 is: 2,790

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.16 : 4,332.24 = 1,860 : x
  2. Step 2: Convert to fraction form
    2,888.16/4,332.24 = 1,860/x
  3. Step 3: Cross multiply
    2,888.16x = 4,332.24 × 1,860
  4. Step 4: Simplify right side
    2,888.16x = 8,057,966.40
  5. Step 5: Solve for x
    x = 8,057,966.40/2,888.16
  6. Step 6: Final answer
    x = 2,790

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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.