Home / 1,435.20-2,153.70-569.52

Finding the Fourth Proportional to 1,435.20, 2,153.70 and 569.52

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Solution

The fourth proportional to 1,435.20, 2,153.70 and 569.52 is: 854.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.20 : 2,153.70 = 569.52 : x
  2. Step 2: Convert to fraction form
    1,435.20/2,153.70 = 569.52/x
  3. Step 3: Cross multiply
    1,435.20x = 2,153.70 × 569.52
  4. Step 4: Simplify right side
    1,435.20x = 1,226,575.22
  5. Step 5: Solve for x
    x = 1,226,575.22/1,435.20
  6. Step 6: Final answer
    x = 854.64

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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.