Home / 1,526.21-2,289.32-877.13

Finding the Fourth Proportional to 1,526.21, 2,289.32 and 877.13

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Solution

The fourth proportional to 1,526.21, 2,289.32 and 877.13 is: 1,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.21 : 2,289.32 = 877.13 : x
  2. Step 2: Convert to fraction form
    1,526.21/2,289.32 = 877.13/x
  3. Step 3: Cross multiply
    1,526.21x = 2,289.32 × 877.13
  4. Step 4: Simplify right side
    1,526.21x = 2,008,026.87
  5. Step 5: Solve for x
    x = 2,008,026.87/1,526.21
  6. Step 6: Final answer
    x = 1,315.70

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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.