Home / 2,423.31-3,343.65-1,428.23

Finding the Fourth Proportional to 2,423.31, 3,343.65 and 1,428.23

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Solution

The fourth proportional to 2,423.31, 3,343.65 and 1,428.23 is: 1,970.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.31 : 3,343.65 = 1,428.23 : x
  2. Step 2: Convert to fraction form
    2,423.31/3,343.65 = 1,428.23/x
  3. Step 3: Cross multiply
    2,423.31x = 3,343.65 × 1,428.23
  4. Step 4: Simplify right side
    2,423.31x = 4,775,501.24
  5. Step 5: Solve for x
    x = 4,775,501.24/2,423.31
  6. Step 6: Final answer
    x = 1,970.65

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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.