Home / 2,114.10-3,156.08-1,802.70

Finding the Fourth Proportional to 2,114.10, 3,156.08 and 1,802.70

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Solution

The fourth proportional to 2,114.10, 3,156.08 and 1,802.70 is: 2,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.10 : 3,156.08 = 1,802.70 : x
  2. Step 2: Convert to fraction form
    2,114.10/3,156.08 = 1,802.70/x
  3. Step 3: Cross multiply
    2,114.10x = 3,156.08 × 1,802.70
  4. Step 4: Simplify right side
    2,114.10x = 5,689,456.40
  5. Step 5: Solve for x
    x = 5,689,456.40/2,114.10
  6. Step 6: Final answer
    x = 2,691.20

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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.