Home / 1,869.81-2,580.13-1,030.46

Finding the Fourth Proportional to 1,869.81, 2,580.13 and 1,030.46

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Solution

The fourth proportional to 1,869.81, 2,580.13 and 1,030.46 is: 1,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.81 : 2,580.13 = 1,030.46 : x
  2. Step 2: Convert to fraction form
    1,869.81/2,580.13 = 1,030.46/x
  3. Step 3: Cross multiply
    1,869.81x = 2,580.13 × 1,030.46
  4. Step 4: Simplify right side
    1,869.81x = 2,658,720.76
  5. Step 5: Solve for x
    x = 2,658,720.76/1,869.81
  6. Step 6: Final answer
    x = 1,421.92

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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.