Home / 1,772.55-2,444.99-1,247.67

Finding the Fourth Proportional to 1,772.55, 2,444.99 and 1,247.67

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Solution

The fourth proportional to 1,772.55, 2,444.99 and 1,247.67 is: 1,720.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.55 : 2,444.99 = 1,247.67 : x
  2. Step 2: Convert to fraction form
    1,772.55/2,444.99 = 1,247.67/x
  3. Step 3: Cross multiply
    1,772.55x = 2,444.99 × 1,247.67
  4. Step 4: Simplify right side
    1,772.55x = 3,050,534.43
  5. Step 5: Solve for x
    x = 3,050,534.43/1,772.55
  6. Step 6: Final answer
    x = 1,720.99

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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.