Home / 1,534.21-2,117.93-904.54

Finding the Fourth Proportional to 1,534.21, 2,117.93 and 904.54

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Solution

The fourth proportional to 1,534.21, 2,117.93 and 904.54 is: 1,248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.21 : 2,117.93 = 904.54 : x
  2. Step 2: Convert to fraction form
    1,534.21/2,117.93 = 904.54/x
  3. Step 3: Cross multiply
    1,534.21x = 2,117.93 × 904.54
  4. Step 4: Simplify right side
    1,534.21x = 1,915,752.40
  5. Step 5: Solve for x
    x = 1,915,752.40/1,534.21
  6. Step 6: Final answer
    x = 1,248.69

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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.