Home / 1,567.23-2,162.88-904.11

Finding the Fourth Proportional to 1,567.23, 2,162.88 and 904.11

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Solution

The fourth proportional to 1,567.23, 2,162.88 and 904.11 is: 1,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.23 : 2,162.88 = 904.11 : x
  2. Step 2: Convert to fraction form
    1,567.23/2,162.88 = 904.11/x
  3. Step 3: Cross multiply
    1,567.23x = 2,162.88 × 904.11
  4. Step 4: Simplify right side
    1,567.23x = 1,955,481.44
  5. Step 5: Solve for x
    x = 1,955,481.44/1,567.23
  6. Step 6: Final answer
    x = 1,247.73

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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.