Home / 1,465.10-2,197.90-477.72

Finding the Fourth Proportional to 1,465.10, 2,197.90 and 477.72

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Solution

The fourth proportional to 1,465.10, 2,197.90 and 477.72 is: 716.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.10 : 2,197.90 = 477.72 : x
  2. Step 2: Convert to fraction form
    1,465.10/2,197.90 = 477.72/x
  3. Step 3: Cross multiply
    1,465.10x = 2,197.90 × 477.72
  4. Step 4: Simplify right side
    1,465.10x = 1,049,980.79
  5. Step 5: Solve for x
    x = 1,049,980.79/1,465.10
  6. Step 6: Final answer
    x = 716.66

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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.