Home / 2,916.02-4,024.73-1,921.39

Finding the Fourth Proportional to 2,916.02, 4,024.73 and 1,921.39

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Solution

The fourth proportional to 2,916.02, 4,024.73 and 1,921.39 is: 2,651.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.02 : 4,024.73 = 1,921.39 : x
  2. Step 2: Convert to fraction form
    2,916.02/4,024.73 = 1,921.39/x
  3. Step 3: Cross multiply
    2,916.02x = 4,024.73 × 1,921.39
  4. Step 4: Simplify right side
    2,916.02x = 7,733,070.72
  5. Step 5: Solve for x
    x = 7,733,070.72/2,916.02
  6. Step 6: Final answer
    x = 2,651.92

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1.5x scale

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.