Home / 3,477.48-4,798.80-1,985.64

Finding the Fourth Proportional to 3,477.48, 4,798.80 and 1,985.64

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Solution

The fourth proportional to 3,477.48, 4,798.80 and 1,985.64 is: 2,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.48 : 4,798.80 = 1,985.64 : x
  2. Step 2: Convert to fraction form
    3,477.48/4,798.80 = 1,985.64/x
  3. Step 3: Cross multiply
    3,477.48x = 4,798.80 × 1,985.64
  4. Step 4: Simplify right side
    3,477.48x = 9,528,689.23
  5. Step 5: Solve for x
    x = 9,528,689.23/3,477.48
  6. Step 6: Final answer
    x = 2,740.11

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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.