Home / 1,567.18-2,162.68-904.09

Finding the Fourth Proportional to 1,567.18, 2,162.68 and 904.09

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Solution

The fourth proportional to 1,567.18, 2,162.68 and 904.09 is: 1,247.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.18 : 2,162.68 = 904.09 : x
  2. Step 2: Convert to fraction form
    1,567.18/2,162.68 = 904.09/x
  3. Step 3: Cross multiply
    1,567.18x = 2,162.68 × 904.09
  4. Step 4: Simplify right side
    1,567.18x = 1,955,257.36
  5. Step 5: Solve for x
    x = 1,955,257.36/1,567.18
  6. Step 6: Final answer
    x = 1,247.63

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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.