Home / 3,130.04-4,319.16-1,870.85

Finding the Fourth Proportional to 3,130.04, 4,319.16 and 1,870.85

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Solution

The fourth proportional to 3,130.04, 4,319.16 and 1,870.85 is: 2,581.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.04 : 4,319.16 = 1,870.85 : x
  2. Step 2: Convert to fraction form
    3,130.04/4,319.16 = 1,870.85/x
  3. Step 3: Cross multiply
    3,130.04x = 4,319.16 × 1,870.85
  4. Step 4: Simplify right side
    3,130.04x = 8,080,471.87
  5. Step 5: Solve for x
    x = 8,080,471.87/3,130.04
  6. Step 6: Final answer
    x = 2,581.59

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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.