Home / 4,405.90-6,075.04-2,990.50

Finding the Fourth Proportional to 4,405.90, 6,075.04 and 2,990.50

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Solution

The fourth proportional to 4,405.90, 6,075.04 and 2,990.50 is: 4,123.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,405.90 : 6,075.04 = 2,990.50 : x
  2. Step 2: Convert to fraction form
    4,405.90/6,075.04 = 2,990.50/x
  3. Step 3: Cross multiply
    4,405.90x = 6,075.04 × 2,990.50
  4. Step 4: Simplify right side
    4,405.90x = 18,167,376.74
  5. Step 5: Solve for x
    x = 18,167,376.74/4,405.90
  6. Step 6: Final answer
    x = 4,123.42

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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.