Home / 1,871.10-2,582.45-1,555.94

Finding the Fourth Proportional to 1,871.10, 2,582.45 and 1,555.94

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Solution

The fourth proportional to 1,871.10, 2,582.45 and 1,555.94 is: 2,147.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.10 : 2,582.45 = 1,555.94 : x
  2. Step 2: Convert to fraction form
    1,871.10/2,582.45 = 1,555.94/x
  3. Step 3: Cross multiply
    1,871.10x = 2,582.45 × 1,555.94
  4. Step 4: Simplify right side
    1,871.10x = 4,018,141.76
  5. Step 5: Solve for x
    x = 4,018,141.76/1,871.10
  6. Step 6: Final answer
    x = 2,147.48

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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.