Home / 1,057.02-1,583.34-623.94

Finding the Fourth Proportional to 1,057.02, 1,583.34 and 623.94

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Solution

The fourth proportional to 1,057.02, 1,583.34 and 623.94 is: 934.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.02 : 1,583.34 = 623.94 : x
  2. Step 2: Convert to fraction form
    1,057.02/1,583.34 = 623.94/x
  3. Step 3: Cross multiply
    1,057.02x = 1,583.34 × 623.94
  4. Step 4: Simplify right side
    1,057.02x = 987,909.16
  5. Step 5: Solve for x
    x = 987,909.16/1,057.02
  6. Step 6: Final answer
    x = 934.62

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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.