Home / 1,478.76-2,025.91-1,423.40

Finding the Fourth Proportional to 1,478.76, 2,025.91 and 1,423.40

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Solution

The fourth proportional to 1,478.76, 2,025.91 and 1,423.40 is: 1,950.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.76 : 2,025.91 = 1,423.40 : x
  2. Step 2: Convert to fraction form
    1,478.76/2,025.91 = 1,423.40/x
  3. Step 3: Cross multiply
    1,478.76x = 2,025.91 × 1,423.40
  4. Step 4: Simplify right side
    1,478.76x = 2,883,680.29
  5. Step 5: Solve for x
    x = 2,883,680.29/1,478.76
  6. Step 6: Final answer
    x = 1,950.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.