Home / 2,149.44-2,968.64-1,916.16

Finding the Fourth Proportional to 2,149.44, 2,968.64 and 1,916.16

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Solution

The fourth proportional to 2,149.44, 2,968.64 and 1,916.16 is: 2,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.44 : 2,968.64 = 1,916.16 : x
  2. Step 2: Convert to fraction form
    2,149.44/2,968.64 = 1,916.16/x
  3. Step 3: Cross multiply
    2,149.44x = 2,968.64 × 1,916.16
  4. Step 4: Simplify right side
    2,149.44x = 5,688,389.22
  5. Step 5: Solve for x
    x = 5,688,389.22/2,149.44
  6. Step 6: Final answer
    x = 2,646.45

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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.