Home / 2,916.47-4,349.03-2,890.15

Finding the Fourth Proportional to 2,916.47, 4,349.03 and 2,890.15

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Solution

The fourth proportional to 2,916.47, 4,349.03 and 2,890.15 is: 4,309.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.47 : 4,349.03 = 2,890.15 : x
  2. Step 2: Convert to fraction form
    2,916.47/4,349.03 = 2,890.15/x
  3. Step 3: Cross multiply
    2,916.47x = 4,349.03 × 2,890.15
  4. Step 4: Simplify right side
    2,916.47x = 12,569,323.73
  5. Step 5: Solve for x
    x = 12,569,323.73/2,916.47
  6. Step 6: Final answer
    x = 4,309.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.