Home / 1,575.63-2,174.40-867.53

Finding the Fourth Proportional to 1,575.63, 2,174.40 and 867.53

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Solution

The fourth proportional to 1,575.63, 2,174.40 and 867.53 is: 1,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.63 : 2,174.40 = 867.53 : x
  2. Step 2: Convert to fraction form
    1,575.63/2,174.40 = 867.53/x
  3. Step 3: Cross multiply
    1,575.63x = 2,174.40 × 867.53
  4. Step 4: Simplify right side
    1,575.63x = 1,886,357.23
  5. Step 5: Solve for x
    x = 1,886,357.23/1,575.63
  6. Step 6: Final answer
    x = 1,197.21

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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.