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Finding the Fourth Proportional to 1,575, 2,362.61 and 535.11

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Solution

The fourth proportional to 1,575, 2,362.61 and 535.11 is: 802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575 : 2,362.61 = 535.11 : x
  2. Step 2: Convert to fraction form
    1,575/2,362.61 = 535.11/x
  3. Step 3: Cross multiply
    1,575x = 2,362.61 × 535.11
  4. Step 4: Simplify right side
    1,575x = 1,264,253.56
  5. Step 5: Solve for x
    x = 1,264,253.56/1,575
  6. Step 6: Final answer
    x = 802.70

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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.