Home / 2,913.96-4,014.21-2,166.63

Finding the Fourth Proportional to 2,913.96, 4,014.21 and 2,166.63

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Solution

The fourth proportional to 2,913.96, 4,014.21 and 2,166.63 is: 2,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.96 : 4,014.21 = 2,166.63 : x
  2. Step 2: Convert to fraction form
    2,913.96/4,014.21 = 2,166.63/x
  3. Step 3: Cross multiply
    2,913.96x = 4,014.21 × 2,166.63
  4. Step 4: Simplify right side
    2,913.96x = 8,697,307.81
  5. Step 5: Solve for x
    x = 8,697,307.81/2,913.96
  6. Step 6: Final answer
    x = 2,984.70

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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.