Home / 1,875.16-2,586.90-1,455.64

Finding the Fourth Proportional to 1,875.16, 2,586.90 and 1,455.64

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Solution

The fourth proportional to 1,875.16, 2,586.90 and 1,455.64 is: 2,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.16 : 2,586.90 = 1,455.64 : x
  2. Step 2: Convert to fraction form
    1,875.16/2,586.90 = 1,455.64/x
  3. Step 3: Cross multiply
    1,875.16x = 2,586.90 × 1,455.64
  4. Step 4: Simplify right side
    1,875.16x = 3,765,595.12
  5. Step 5: Solve for x
    x = 3,765,595.12/1,875.16
  6. Step 6: Final answer
    x = 2,008.15

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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.