Home / 1,890.15-2,835.18-591.45

Finding the Fourth Proportional to 1,890.15, 2,835.18 and 591.45

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Solution

The fourth proportional to 1,890.15, 2,835.18 and 591.45 is: 887.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.15 : 2,835.18 = 591.45 : x
  2. Step 2: Convert to fraction form
    1,890.15/2,835.18 = 591.45/x
  3. Step 3: Cross multiply
    1,890.15x = 2,835.18 × 591.45
  4. Step 4: Simplify right side
    1,890.15x = 1,676,867.21
  5. Step 5: Solve for x
    x = 1,676,867.21/1,890.15
  6. Step 6: Final answer
    x = 887.16

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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.