Home / 2,971.47-4,099.58-1,851.49

Finding the Fourth Proportional to 2,971.47, 4,099.58 and 1,851.49

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Solution

The fourth proportional to 2,971.47, 4,099.58 and 1,851.49 is: 2,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.47 : 4,099.58 = 1,851.49 : x
  2. Step 2: Convert to fraction form
    2,971.47/4,099.58 = 1,851.49/x
  3. Step 3: Cross multiply
    2,971.47x = 4,099.58 × 1,851.49
  4. Step 4: Simplify right side
    2,971.47x = 7,590,331.37
  5. Step 5: Solve for x
    x = 7,590,331.37/2,971.47
  6. Step 6: Final answer
    x = 2,554.40

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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.