Home / 2,901.61-4,352.55-1,916.38

Finding the Fourth Proportional to 2,901.61, 4,352.55 and 1,916.38

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Solution

The fourth proportional to 2,901.61, 4,352.55 and 1,916.38 is: 2,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,901.61 : 4,352.55 = 1,916.38 : x
  2. Step 2: Convert to fraction form
    2,901.61/4,352.55 = 1,916.38/x
  3. Step 3: Cross multiply
    2,901.61x = 4,352.55 × 1,916.38
  4. Step 4: Simplify right side
    2,901.61x = 8,341,139.77
  5. Step 5: Solve for x
    x = 8,341,139.77/2,901.61
  6. Step 6: Final answer
    x = 2,874.66

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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.