Home / 5,374.80-7,417.59-2,985.05

Finding the Fourth Proportional to 5,374.80, 7,417.59 and 2,985.05

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Solution

The fourth proportional to 5,374.80, 7,417.59 and 2,985.05 is: 4,119.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,374.80 : 7,417.59 = 2,985.05 : x
  2. Step 2: Convert to fraction form
    5,374.80/7,417.59 = 2,985.05/x
  3. Step 3: Cross multiply
    5,374.80x = 7,417.59 × 2,985.05
  4. Step 4: Simplify right side
    5,374.80x = 22,141,895.57
  5. Step 5: Solve for x
    x = 22,141,895.57/5,374.80
  6. Step 6: Final answer
    x = 4,119.58

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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.