Home / 3,319.47-4,975.95-1,126.74

Finding the Fourth Proportional to 3,319.47, 4,975.95 and 1,126.74

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Solution

The fourth proportional to 3,319.47, 4,975.95 and 1,126.74 is: 1,689.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.47 : 4,975.95 = 1,126.74 : x
  2. Step 2: Convert to fraction form
    3,319.47/4,975.95 = 1,126.74/x
  3. Step 3: Cross multiply
    3,319.47x = 4,975.95 × 1,126.74
  4. Step 4: Simplify right side
    3,319.47x = 5,606,601.90
  5. Step 5: Solve for x
    x = 5,606,601.90/3,319.47
  6. Step 6: Final answer
    x = 1,689.01

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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.