Home / 7,810.81-10,778.93-4,274.05

Finding the Fourth Proportional to 7,810.81, 10,778.93 and 4,274.05

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Solution

The fourth proportional to 7,810.81, 10,778.93 and 4,274.05 is: 5,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.81 : 10,778.93 = 4,274.05 : x
  2. Step 2: Convert to fraction form
    7,810.81/10,778.93 = 4,274.05/x
  3. Step 3: Cross multiply
    7,810.81x = 10,778.93 × 4,274.05
  4. Step 4: Simplify right side
    7,810.81x = 46,069,685.77
  5. Step 5: Solve for x
    x = 46,069,685.77/7,810.81
  6. Step 6: Final answer
    x = 5,898.20

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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.