Home / 1,916.09-2,874.61-929.37

Finding the Fourth Proportional to 1,916.09, 2,874.61 and 929.37

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Solution

The fourth proportional to 1,916.09, 2,874.61 and 929.37 is: 1,394.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.09 : 2,874.61 = 929.37 : x
  2. Step 2: Convert to fraction form
    1,916.09/2,874.61 = 929.37/x
  3. Step 3: Cross multiply
    1,916.09x = 2,874.61 × 929.37
  4. Step 4: Simplify right side
    1,916.09x = 2,671,588.24
  5. Step 5: Solve for x
    x = 2,671,588.24/1,916.09
  6. Step 6: Final answer
    x = 1,394.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.