Home / 2,970.47-4,099.31-1,924.35

Finding the Fourth Proportional to 2,970.47, 4,099.31 and 1,924.35

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Solution

The fourth proportional to 2,970.47, 4,099.31 and 1,924.35 is: 2,655.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.47 : 4,099.31 = 1,924.35 : x
  2. Step 2: Convert to fraction form
    2,970.47/4,099.31 = 1,924.35/x
  3. Step 3: Cross multiply
    2,970.47x = 4,099.31 × 1,924.35
  4. Step 4: Simplify right side
    2,970.47x = 7,888,507.20
  5. Step 5: Solve for x
    x = 7,888,507.20/2,970.47
  6. Step 6: Final answer
    x = 2,655.64

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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.