Home / 2,870.80-4,306.42-1,117.26

Finding the Fourth Proportional to 2,870.80, 4,306.42 and 1,117.26

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Solution

The fourth proportional to 2,870.80, 4,306.42 and 1,117.26 is: 1,675.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.80 : 4,306.42 = 1,117.26 : x
  2. Step 2: Convert to fraction form
    2,870.80/4,306.42 = 1,117.26/x
  3. Step 3: Cross multiply
    2,870.80x = 4,306.42 × 1,117.26
  4. Step 4: Simplify right side
    2,870.80x = 4,811,390.81
  5. Step 5: Solve for x
    x = 4,811,390.81/2,870.80
  6. Step 6: Final answer
    x = 1,675.98

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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.