Home / 1,870.04-2,580.80-1,030.90

Finding the Fourth Proportional to 1,870.04, 2,580.80 and 1,030.90

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Solution

The fourth proportional to 1,870.04, 2,580.80 and 1,030.90 is: 1,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.04 : 2,580.80 = 1,030.90 : x
  2. Step 2: Convert to fraction form
    1,870.04/2,580.80 = 1,030.90/x
  3. Step 3: Cross multiply
    1,870.04x = 2,580.80 × 1,030.90
  4. Step 4: Simplify right side
    1,870.04x = 2,660,546.72
  5. Step 5: Solve for x
    x = 2,660,546.72/1,870.04
  6. Step 6: Final answer
    x = 1,422.72

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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.