Home / 2,445.45-3,668.18-1,916.93

Finding the Fourth Proportional to 2,445.45, 3,668.18 and 1,916.93

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Solution

The fourth proportional to 2,445.45, 3,668.18 and 1,916.93 is: 2,875.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.45 : 3,668.18 = 1,916.93 : x
  2. Step 2: Convert to fraction form
    2,445.45/3,668.18 = 1,916.93/x
  3. Step 3: Cross multiply
    2,445.45x = 3,668.18 × 1,916.93
  4. Step 4: Simplify right side
    2,445.45x = 7,031,616.36
  5. Step 5: Solve for x
    x = 7,031,616.36/2,445.45
  6. Step 6: Final answer
    x = 2,875.39

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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.