Home / 1,869.42-2,579.75-1,030.10

Finding the Fourth Proportional to 1,869.42, 2,579.75 and 1,030.10

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Solution

The fourth proportional to 1,869.42, 2,579.75 and 1,030.10 is: 1,421.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.42 : 2,579.75 = 1,030.10 : x
  2. Step 2: Convert to fraction form
    1,869.42/2,579.75 = 1,030.10/x
  3. Step 3: Cross multiply
    1,869.42x = 2,579.75 × 1,030.10
  4. Step 4: Simplify right side
    1,869.42x = 2,657,382.43
  5. Step 5: Solve for x
    x = 2,657,382.43/1,869.42
  6. Step 6: Final answer
    x = 1,421.50

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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.