Home / 2,423.07-3,343.32-1,428.45

Finding the Fourth Proportional to 2,423.07, 3,343.32 and 1,428.45

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Solution

The fourth proportional to 2,423.07, 3,343.32 and 1,428.45 is: 1,970.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.07 : 3,343.32 = 1,428.45 : x
  2. Step 2: Convert to fraction form
    2,423.07/3,343.32 = 1,428.45/x
  3. Step 3: Cross multiply
    2,423.07x = 3,343.32 × 1,428.45
  4. Step 4: Simplify right side
    2,423.07x = 4,775,765.45
  5. Step 5: Solve for x
    x = 4,775,765.45/2,423.07
  6. Step 6: Final answer
    x = 1,970.96

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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.