Home / 6,669.34-10,005.63-1,989.16

Finding the Fourth Proportional to 6,669.34, 10,005.63 and 1,989.16

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Solution

The fourth proportional to 6,669.34, 10,005.63 and 1,989.16 is: 2,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.34 : 10,005.63 = 1,989.16 : x
  2. Step 2: Convert to fraction form
    6,669.34/10,005.63 = 1,989.16/x
  3. Step 3: Cross multiply
    6,669.34x = 10,005.63 × 1,989.16
  4. Step 4: Simplify right side
    6,669.34x = 19,902,798.97
  5. Step 5: Solve for x
    x = 19,902,798.97/6,669.34
  6. Step 6: Final answer
    x = 2,984.22

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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.