Home / 1,916.48-2,644.66-1,130.36

Finding the Fourth Proportional to 1,916.48, 2,644.66 and 1,130.36

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Solution

The fourth proportional to 1,916.48, 2,644.66 and 1,130.36 is: 1,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.48 : 2,644.66 = 1,130.36 : x
  2. Step 2: Convert to fraction form
    1,916.48/2,644.66 = 1,130.36/x
  3. Step 3: Cross multiply
    1,916.48x = 2,644.66 × 1,130.36
  4. Step 4: Simplify right side
    1,916.48x = 2,989,417.88
  5. Step 5: Solve for x
    x = 2,989,417.88/1,916.48
  6. Step 6: Final answer
    x = 1,559.85

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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.