Home / 1,037.35-1,431.53-571.60

Finding the Fourth Proportional to 1,037.35, 1,431.53 and 571.60

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Solution

The fourth proportional to 1,037.35, 1,431.53 and 571.60 is: 788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.35 : 1,431.53 = 571.60 : x
  2. Step 2: Convert to fraction form
    1,037.35/1,431.53 = 571.60/x
  3. Step 3: Cross multiply
    1,037.35x = 1,431.53 × 571.60
  4. Step 4: Simplify right side
    1,037.35x = 818,260.40
  5. Step 5: Solve for x
    x = 818,260.40/1,037.35
  6. Step 6: Final answer
    x = 788.80

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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.