Home / 5,070.40-7,604.64-1,783.36

Finding the Fourth Proportional to 5,070.40, 7,604.64 and 1,783.36

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Solution

The fourth proportional to 5,070.40, 7,604.64 and 1,783.36 is: 2,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,070.40 : 7,604.64 = 1,783.36 : x
  2. Step 2: Convert to fraction form
    5,070.40/7,604.64 = 1,783.36/x
  3. Step 3: Cross multiply
    5,070.40x = 7,604.64 × 1,783.36
  4. Step 4: Simplify right side
    5,070.40x = 13,561,810.79
  5. Step 5: Solve for x
    x = 13,561,810.79/5,070.40
  6. Step 6: Final answer
    x = 2,674.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.