Home / 4,987.37-7,484.81-1,870.44

Finding the Fourth Proportional to 4,987.37, 7,484.81 and 1,870.44

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Solution

The fourth proportional to 4,987.37, 7,484.81 and 1,870.44 is: 2,807.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.37 : 7,484.81 = 1,870.44 : x
  2. Step 2: Convert to fraction form
    4,987.37/7,484.81 = 1,870.44/x
  3. Step 3: Cross multiply
    4,987.37x = 7,484.81 × 1,870.44
  4. Step 4: Simplify right side
    4,987.37x = 13,999,892.70
  5. Step 5: Solve for x
    x = 13,999,892.70/4,987.37
  6. Step 6: Final answer
    x = 2,807.07

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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.