Home / 5,139.02-7,707.95-1,441.39

Finding the Fourth Proportional to 5,139.02, 7,707.95 and 1,441.39

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Solution

The fourth proportional to 5,139.02, 7,707.95 and 1,441.39 is: 2,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.02 : 7,707.95 = 1,441.39 : x
  2. Step 2: Convert to fraction form
    5,139.02/7,707.95 = 1,441.39/x
  3. Step 3: Cross multiply
    5,139.02x = 7,707.95 × 1,441.39
  4. Step 4: Simplify right side
    5,139.02x = 11,110,159.49
  5. Step 5: Solve for x
    x = 11,110,159.49/5,139.02
  6. Step 6: Final answer
    x = 2,161.92

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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.