Home / 2,423.60-3,340.68-1,898.72

Finding the Fourth Proportional to 2,423.60, 3,340.68 and 1,898.72

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Solution

The fourth proportional to 2,423.60, 3,340.68 and 1,898.72 is: 2,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.60 : 3,340.68 = 1,898.72 : x
  2. Step 2: Convert to fraction form
    2,423.60/3,340.68 = 1,898.72/x
  3. Step 3: Cross multiply
    2,423.60x = 3,340.68 × 1,898.72
  4. Step 4: Simplify right side
    2,423.60x = 6,343,015.93
  5. Step 5: Solve for x
    x = 6,343,015.93/2,423.60
  6. Step 6: Final answer
    x = 2,617.19

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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.