Home / 1,875.21-2,586.65-1,314.87

Finding the Fourth Proportional to 1,875.21, 2,586.65 and 1,314.87

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Solution

The fourth proportional to 1,875.21, 2,586.65 and 1,314.87 is: 1,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.21 : 2,586.65 = 1,314.87 : x
  2. Step 2: Convert to fraction form
    1,875.21/2,586.65 = 1,314.87/x
  3. Step 3: Cross multiply
    1,875.21x = 2,586.65 × 1,314.87
  4. Step 4: Simplify right side
    1,875.21x = 3,401,101.91
  5. Step 5: Solve for x
    x = 3,401,101.91/1,875.21
  6. Step 6: Final answer
    x = 1,813.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.