Home / 2,897.18-4,345.80-1,916.29

Finding the Fourth Proportional to 2,897.18, 4,345.80 and 1,916.29

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Solution

The fourth proportional to 2,897.18, 4,345.80 and 1,916.29 is: 2,874.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.18 : 4,345.80 = 1,916.29 : x
  2. Step 2: Convert to fraction form
    2,897.18/4,345.80 = 1,916.29/x
  3. Step 3: Cross multiply
    2,897.18x = 4,345.80 × 1,916.29
  4. Step 4: Simplify right side
    2,897.18x = 8,327,781.77
  5. Step 5: Solve for x
    x = 8,327,781.77/2,897.18
  6. Step 6: Final answer
    x = 2,874.44

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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.