Home / 2,916.50-4,390.49-2,658.15

Finding the Fourth Proportional to 2,916.50, 4,390.49 and 2,658.15

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Solution

The fourth proportional to 2,916.50, 4,390.49 and 2,658.15 is: 4,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.50 : 4,390.49 = 2,658.15 : x
  2. Step 2: Convert to fraction form
    2,916.50/4,390.49 = 2,658.15/x
  3. Step 3: Cross multiply
    2,916.50x = 4,390.49 × 2,658.15
  4. Step 4: Simplify right side
    2,916.50x = 11,670,567.70
  5. Step 5: Solve for x
    x = 11,670,567.70/2,916.50
  6. Step 6: Final answer
    x = 4,001.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.