Home / 2,423.48-3,343.68-1,428.39

Finding the Fourth Proportional to 2,423.48, 3,343.68 and 1,428.39

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Solution

The fourth proportional to 2,423.48, 3,343.68 and 1,428.39 is: 1,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.48 : 3,343.68 = 1,428.39 : x
  2. Step 2: Convert to fraction form
    2,423.48/3,343.68 = 1,428.39/x
  3. Step 3: Cross multiply
    2,423.48x = 3,343.68 × 1,428.39
  4. Step 4: Simplify right side
    2,423.48x = 4,776,079.08
  5. Step 5: Solve for x
    x = 4,776,079.08/2,423.48
  6. Step 6: Final answer
    x = 1,970.76

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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.