Home / 7,579.60-10,459.20-4,222

Finding the Fourth Proportional to 7,579.60, 10,459.20 and 4,222

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Solution

The fourth proportional to 7,579.60, 10,459.20 and 4,222 is: 5,826.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.60 : 10,459.20 = 4,222 : x
  2. Step 2: Convert to fraction form
    7,579.60/10,459.20 = 4,222/x
  3. Step 3: Cross multiply
    7,579.60x = 10,459.20 × 4,222
  4. Step 4: Simplify right side
    7,579.60x = 44,158,742.40
  5. Step 5: Solve for x
    x = 44,158,742.40/7,579.60
  6. Step 6: Final answer
    x = 5,826.00

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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.