Home / 1,870.65-2,581.44-1,031.33

Finding the Fourth Proportional to 1,870.65, 2,581.44 and 1,031.33

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Solution

The fourth proportional to 1,870.65, 2,581.44 and 1,031.33 is: 1,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.65 : 2,581.44 = 1,031.33 : x
  2. Step 2: Convert to fraction form
    1,870.65/2,581.44 = 1,031.33/x
  3. Step 3: Cross multiply
    1,870.65x = 2,581.44 × 1,031.33
  4. Step 4: Simplify right side
    1,870.65x = 2,662,303.61
  5. Step 5: Solve for x
    x = 2,662,303.61/1,870.65
  6. Step 6: Final answer
    x = 1,423.20

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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.