Home / 1,247.02-1,865.39-1,025.15

Finding the Fourth Proportional to 1,247.02, 1,865.39 and 1,025.15

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Solution

The fourth proportional to 1,247.02, 1,865.39 and 1,025.15 is: 1,533.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.02 : 1,865.39 = 1,025.15 : x
  2. Step 2: Convert to fraction form
    1,247.02/1,865.39 = 1,025.15/x
  3. Step 3: Cross multiply
    1,247.02x = 1,865.39 × 1,025.15
  4. Step 4: Simplify right side
    1,247.02x = 1,912,295.23
  5. Step 5: Solve for x
    x = 1,912,295.23/1,247.02
  6. Step 6: Final answer
    x = 1,533.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.