Home / 4,427.85-6,642.18-1,140.95

Finding the Fourth Proportional to 4,427.85, 6,642.18 and 1,140.95

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Solution

The fourth proportional to 4,427.85, 6,642.18 and 1,140.95 is: 1,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427.85 : 6,642.18 = 1,140.95 : x
  2. Step 2: Convert to fraction form
    4,427.85/6,642.18 = 1,140.95/x
  3. Step 3: Cross multiply
    4,427.85x = 6,642.18 × 1,140.95
  4. Step 4: Simplify right side
    4,427.85x = 7,578,389.57
  5. Step 5: Solve for x
    x = 7,578,389.57/4,427.85
  6. Step 6: Final answer
    x = 1,711.53

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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.