Home / 1,038.95-1,433.75-573.20

Finding the Fourth Proportional to 1,038.95, 1,433.75 and 573.20

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Solution

The fourth proportional to 1,038.95, 1,433.75 and 573.20 is: 791.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038.95 : 1,433.75 = 573.20 : x
  2. Step 2: Convert to fraction form
    1,038.95/1,433.75 = 573.20/x
  3. Step 3: Cross multiply
    1,038.95x = 1,433.75 × 573.20
  4. Step 4: Simplify right side
    1,038.95x = 821,825.50
  5. Step 5: Solve for x
    x = 821,825.50/1,038.95
  6. Step 6: Final answer
    x = 791.02

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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.