Home / 5,038.30-7,555.48-1,916.64

Finding the Fourth Proportional to 5,038.30, 7,555.48 and 1,916.64

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Solution

The fourth proportional to 5,038.30, 7,555.48 and 1,916.64 is: 2,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.30 : 7,555.48 = 1,916.64 : x
  2. Step 2: Convert to fraction form
    5,038.30/7,555.48 = 1,916.64/x
  3. Step 3: Cross multiply
    5,038.30x = 7,555.48 × 1,916.64
  4. Step 4: Simplify right side
    5,038.30x = 14,481,135.19
  5. Step 5: Solve for x
    x = 14,481,135.19/5,038.30
  6. Step 6: Final answer
    x = 2,874.21

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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.