Home / 1,207.02-1,810.58-385.28

Finding the Fourth Proportional to 1,207.02, 1,810.58 and 385.28

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Solution

The fourth proportional to 1,207.02, 1,810.58 and 385.28 is: 577.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.02 : 1,810.58 = 385.28 : x
  2. Step 2: Convert to fraction form
    1,207.02/1,810.58 = 385.28/x
  3. Step 3: Cross multiply
    1,207.02x = 1,810.58 × 385.28
  4. Step 4: Simplify right side
    1,207.02x = 697,569.28
  5. Step 5: Solve for x
    x = 697,569.28/1,207.02
  6. Step 6: Final answer
    x = 577.93

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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.