Home / 1,556.02-2,330.19-904.78

Finding the Fourth Proportional to 1,556.02, 2,330.19 and 904.78

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Solution

The fourth proportional to 1,556.02, 2,330.19 and 904.78 is: 1,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.02 : 2,330.19 = 904.78 : x
  2. Step 2: Convert to fraction form
    1,556.02/2,330.19 = 904.78/x
  3. Step 3: Cross multiply
    1,556.02x = 2,330.19 × 904.78
  4. Step 4: Simplify right side
    1,556.02x = 2,108,309.31
  5. Step 5: Solve for x
    x = 2,108,309.31/1,556.02
  6. Step 6: Final answer
    x = 1,354.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.