Home / 7,784.48-10,742.40-4,427.84

Finding the Fourth Proportional to 7,784.48, 10,742.40 and 4,427.84

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Solution

The fourth proportional to 7,784.48, 10,742.40 and 4,427.84 is: 6,110.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.48 : 10,742.40 = 4,427.84 : x
  2. Step 2: Convert to fraction form
    7,784.48/10,742.40 = 4,427.84/x
  3. Step 3: Cross multiply
    7,784.48x = 10,742.40 × 4,427.84
  4. Step 4: Simplify right side
    7,784.48x = 47,565,628.42
  5. Step 5: Solve for x
    x = 47,565,628.42/7,784.48
  6. Step 6: Final answer
    x = 6,110.32

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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.