Home / 1,869.52-2,579.94-1,030.20

Finding the Fourth Proportional to 1,869.52, 2,579.94 and 1,030.20

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Solution

The fourth proportional to 1,869.52, 2,579.94 and 1,030.20 is: 1,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.52 : 2,579.94 = 1,030.20 : x
  2. Step 2: Convert to fraction form
    1,869.52/2,579.94 = 1,030.20/x
  3. Step 3: Cross multiply
    1,869.52x = 2,579.94 × 1,030.20
  4. Step 4: Simplify right side
    1,869.52x = 2,657,854.19
  5. Step 5: Solve for x
    x = 2,657,854.19/1,869.52
  6. Step 6: Final answer
    x = 1,421.68

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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.