Home / 4,899.51-7,349.64-1,389.45

Finding the Fourth Proportional to 4,899.51, 7,349.64 and 1,389.45

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Solution

The fourth proportional to 4,899.51, 7,349.64 and 1,389.45 is: 2,084.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.51 : 7,349.64 = 1,389.45 : x
  2. Step 2: Convert to fraction form
    4,899.51/7,349.64 = 1,389.45/x
  3. Step 3: Cross multiply
    4,899.51x = 7,349.64 × 1,389.45
  4. Step 4: Simplify right side
    4,899.51x = 10,211,957.30
  5. Step 5: Solve for x
    x = 10,211,957.30/4,899.51
  6. Step 6: Final answer
    x = 2,084.28

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1.5x scale

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.