Home / 2,423.10-3,343.01-1,428.15

Finding the Fourth Proportional to 2,423.10, 3,343.01 and 1,428.15

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Solution

The fourth proportional to 2,423.10, 3,343.01 and 1,428.15 is: 1,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.10 : 3,343.01 = 1,428.15 : x
  2. Step 2: Convert to fraction form
    2,423.10/3,343.01 = 1,428.15/x
  3. Step 3: Cross multiply
    2,423.10x = 3,343.01 × 1,428.15
  4. Step 4: Simplify right side
    2,423.10x = 4,774,319.73
  5. Step 5: Solve for x
    x = 4,774,319.73/2,423.10
  6. Step 6: Final answer
    x = 1,970.34

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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.