Home / 1,875.19-2,587.76-1,047.19

Finding the Fourth Proportional to 1,875.19, 2,587.76 and 1,047.19

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Solution

The fourth proportional to 1,875.19, 2,587.76 and 1,047.19 is: 1,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.19 : 2,587.76 = 1,047.19 : x
  2. Step 2: Convert to fraction form
    1,875.19/2,587.76 = 1,047.19/x
  3. Step 3: Cross multiply
    1,875.19x = 2,587.76 × 1,047.19
  4. Step 4: Simplify right side
    1,875.19x = 2,709,869.93
  5. Step 5: Solve for x
    x = 2,709,869.93/1,875.19
  6. Step 6: Final answer
    x = 1,445.12

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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.