Home / 2,423.85-3,344.51-1,428.99

Finding the Fourth Proportional to 2,423.85, 3,344.51 and 1,428.99

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Solution

The fourth proportional to 2,423.85, 3,344.51 and 1,428.99 is: 1,971.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.85 : 3,344.51 = 1,428.99 : x
  2. Step 2: Convert to fraction form
    2,423.85/3,344.51 = 1,428.99/x
  3. Step 3: Cross multiply
    2,423.85x = 3,344.51 × 1,428.99
  4. Step 4: Simplify right side
    2,423.85x = 4,779,274.92
  5. Step 5: Solve for x
    x = 4,779,274.92/2,423.85
  6. Step 6: Final answer
    x = 1,971.77

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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.