Home / 2,115.72-2,916.60-1,484.34

Finding the Fourth Proportional to 2,115.72, 2,916.60 and 1,484.34

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Solution

The fourth proportional to 2,115.72, 2,916.60 and 1,484.34 is: 2,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.72 : 2,916.60 = 1,484.34 : x
  2. Step 2: Convert to fraction form
    2,115.72/2,916.60 = 1,484.34/x
  3. Step 3: Cross multiply
    2,115.72x = 2,916.60 × 1,484.34
  4. Step 4: Simplify right side
    2,115.72x = 4,329,220.48
  5. Step 5: Solve for x
    x = 4,329,220.48/2,115.72
  6. Step 6: Final answer
    x = 2,046.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.