Home / 1,347.54-2,025.28-1,311.18

Finding the Fourth Proportional to 1,347.54, 2,025.28 and 1,311.18

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Solution

The fourth proportional to 1,347.54, 2,025.28 and 1,311.18 is: 1,970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.54 : 2,025.28 = 1,311.18 : x
  2. Step 2: Convert to fraction form
    1,347.54/2,025.28 = 1,311.18/x
  3. Step 3: Cross multiply
    1,347.54x = 2,025.28 × 1,311.18
  4. Step 4: Simplify right side
    1,347.54x = 2,655,506.63
  5. Step 5: Solve for x
    x = 2,655,506.63/1,347.54
  6. Step 6: Final answer
    x = 1,970.63

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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.