Home / 1,285.02-1,923.48-1,053.36

Finding the Fourth Proportional to 1,285.02, 1,923.48 and 1,053.36

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Solution

The fourth proportional to 1,285.02, 1,923.48 and 1,053.36 is: 1,576.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285.02 : 1,923.48 = 1,053.36 : x
  2. Step 2: Convert to fraction form
    1,285.02/1,923.48 = 1,053.36/x
  3. Step 3: Cross multiply
    1,285.02x = 1,923.48 × 1,053.36
  4. Step 4: Simplify right side
    1,285.02x = 2,026,116.89
  5. Step 5: Solve for x
    x = 2,026,116.89/1,285.02
  6. Step 6: Final answer
    x = 1,576.72

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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.