Home / 3,130.11-4,319.69-1,713.85

Finding the Fourth Proportional to 3,130.11, 4,319.69 and 1,713.85

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Solution

The fourth proportional to 3,130.11, 4,319.69 and 1,713.85 is: 2,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.11 : 4,319.69 = 1,713.85 : x
  2. Step 2: Convert to fraction form
    3,130.11/4,319.69 = 1,713.85/x
  3. Step 3: Cross multiply
    3,130.11x = 4,319.69 × 1,713.85
  4. Step 4: Simplify right side
    3,130.11x = 7,403,281.34
  5. Step 5: Solve for x
    x = 7,403,281.34/3,130.11
  6. Step 6: Final answer
    x = 2,365.18

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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.