Home / 2,317.50-3,197.85-1,478.34

Finding the Fourth Proportional to 2,317.50, 3,197.85 and 1,478.34

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Solution

The fourth proportional to 2,317.50, 3,197.85 and 1,478.34 is: 2,039.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.50 : 3,197.85 = 1,478.34 : x
  2. Step 2: Convert to fraction form
    2,317.50/3,197.85 = 1,478.34/x
  3. Step 3: Cross multiply
    2,317.50x = 3,197.85 × 1,478.34
  4. Step 4: Simplify right side
    2,317.50x = 4,727,509.57
  5. Step 5: Solve for x
    x = 4,727,509.57/2,317.50
  6. Step 6: Final answer
    x = 2,039.92

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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.