Home / 1,346.16-1,857.48-904.80

Finding the Fourth Proportional to 1,346.16, 1,857.48 and 904.80

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Solution

The fourth proportional to 1,346.16, 1,857.48 and 904.80 is: 1,248.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.16 : 1,857.48 = 904.80 : x
  2. Step 2: Convert to fraction form
    1,346.16/1,857.48 = 904.80/x
  3. Step 3: Cross multiply
    1,346.16x = 1,857.48 × 904.80
  4. Step 4: Simplify right side
    1,346.16x = 1,680,647.90
  5. Step 5: Solve for x
    x = 1,680,647.90/1,346.16
  6. Step 6: Final answer
    x = 1,248.48

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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.