Home / 1,869.24-2,813.60-1,587.36

Finding the Fourth Proportional to 1,869.24, 2,813.60 and 1,587.36

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Solution

The fourth proportional to 1,869.24, 2,813.60 and 1,587.36 is: 2,389.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.24 : 2,813.60 = 1,587.36 : x
  2. Step 2: Convert to fraction form
    1,869.24/2,813.60 = 1,587.36/x
  3. Step 3: Cross multiply
    1,869.24x = 2,813.60 × 1,587.36
  4. Step 4: Simplify right side
    1,869.24x = 4,466,196.10
  5. Step 5: Solve for x
    x = 4,466,196.10/1,869.24
  6. Step 6: Final answer
    x = 2,389.31

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.