Home / 4,901.21-6,761.16-3,130.95

Finding the Fourth Proportional to 4,901.21, 6,761.16 and 3,130.95

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Solution

The fourth proportional to 4,901.21, 6,761.16 and 3,130.95 is: 4,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.21 : 6,761.16 = 3,130.95 : x
  2. Step 2: Convert to fraction form
    4,901.21/6,761.16 = 3,130.95/x
  3. Step 3: Cross multiply
    4,901.21x = 6,761.16 × 3,130.95
  4. Step 4: Simplify right side
    4,901.21x = 21,168,853.90
  5. Step 5: Solve for x
    x = 21,168,853.90/4,901.21
  6. Step 6: Final answer
    x = 4,319.11

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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.