Home / 1,567.21-2,162.74-904.27

Finding the Fourth Proportional to 1,567.21, 2,162.74 and 904.27

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Solution

The fourth proportional to 1,567.21, 2,162.74 and 904.27 is: 1,247.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.21 : 2,162.74 = 904.27 : x
  2. Step 2: Convert to fraction form
    1,567.21/2,162.74 = 904.27/x
  3. Step 3: Cross multiply
    1,567.21x = 2,162.74 × 904.27
  4. Step 4: Simplify right side
    1,567.21x = 1,955,700.90
  5. Step 5: Solve for x
    x = 1,955,700.90/1,567.21
  6. Step 6: Final answer
    x = 1,247.89

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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.