Home / 4,870.60-6,722.90-4,214.50

Finding the Fourth Proportional to 4,870.60, 6,722.90 and 4,214.50

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Solution

The fourth proportional to 4,870.60, 6,722.90 and 4,214.50 is: 5,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.60 : 6,722.90 = 4,214.50 : x
  2. Step 2: Convert to fraction form
    4,870.60/6,722.90 = 4,214.50/x
  3. Step 3: Cross multiply
    4,870.60x = 6,722.90 × 4,214.50
  4. Step 4: Simplify right side
    4,870.60x = 28,333,662.05
  5. Step 5: Solve for x
    x = 28,333,662.05/4,870.60
  6. Step 6: Final answer
    x = 5,817.28

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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.