Home / 1,870.11-2,580.53-1,083.87

Finding the Fourth Proportional to 1,870.11, 2,580.53 and 1,083.87

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Solution

The fourth proportional to 1,870.11, 2,580.53 and 1,083.87 is: 1,495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.11 : 2,580.53 = 1,083.87 : x
  2. Step 2: Convert to fraction form
    1,870.11/2,580.53 = 1,083.87/x
  3. Step 3: Cross multiply
    1,870.11x = 2,580.53 × 1,083.87
  4. Step 4: Simplify right side
    1,870.11x = 2,796,953.63
  5. Step 5: Solve for x
    x = 2,796,953.63/1,870.11
  6. Step 6: Final answer
    x = 1,495.61

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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.