Home / 5,030.95-6,945.21-3,143.58

Finding the Fourth Proportional to 5,030.95, 6,945.21 and 3,143.58

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Solution

The fourth proportional to 5,030.95, 6,945.21 and 3,143.58 is: 4,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,030.95 : 6,945.21 = 3,143.58 : x
  2. Step 2: Convert to fraction form
    5,030.95/6,945.21 = 3,143.58/x
  3. Step 3: Cross multiply
    5,030.95x = 6,945.21 × 3,143.58
  4. Step 4: Simplify right side
    5,030.95x = 21,832,807.53
  5. Step 5: Solve for x
    x = 21,832,807.53/5,030.95
  6. Step 6: Final answer
    x = 4,339.70

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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.