Home / 1,531.86-2,297.90-491.98

Finding the Fourth Proportional to 1,531.86, 2,297.90 and 491.98

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Solution

The fourth proportional to 1,531.86, 2,297.90 and 491.98 is: 738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.86 : 2,297.90 = 491.98 : x
  2. Step 2: Convert to fraction form
    1,531.86/2,297.90 = 491.98/x
  3. Step 3: Cross multiply
    1,531.86x = 2,297.90 × 491.98
  4. Step 4: Simplify right side
    1,531.86x = 1,130,520.84
  5. Step 5: Solve for x
    x = 1,130,520.84/1,531.86
  6. Step 6: Final answer
    x = 738.01

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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.