Home / 4,991.24-7,482.80-1,869.50

Finding the Fourth Proportional to 4,991.24, 7,482.80 and 1,869.50

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Solution

The fourth proportional to 4,991.24, 7,482.80 and 1,869.50 is: 2,802.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.24 : 7,482.80 = 1,869.50 : x
  2. Step 2: Convert to fraction form
    4,991.24/7,482.80 = 1,869.50/x
  3. Step 3: Cross multiply
    4,991.24x = 7,482.80 × 1,869.50
  4. Step 4: Simplify right side
    4,991.24x = 13,989,094.60
  5. Step 5: Solve for x
    x = 13,989,094.60/4,991.24
  6. Step 6: Final answer
    x = 2,802.73

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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.