Home / 2,040.65-2,815.18-1,567.70

Finding the Fourth Proportional to 2,040.65, 2,815.18 and 1,567.70

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Solution

The fourth proportional to 2,040.65, 2,815.18 and 1,567.70 is: 2,162.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.65 : 2,815.18 = 1,567.70 : x
  2. Step 2: Convert to fraction form
    2,040.65/2,815.18 = 1,567.70/x
  3. Step 3: Cross multiply
    2,040.65x = 2,815.18 × 1,567.70
  4. Step 4: Simplify right side
    2,040.65x = 4,413,357.69
  5. Step 5: Solve for x
    x = 4,413,357.69/2,040.65
  6. Step 6: Final answer
    x = 2,162.72

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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.