Home / 7,485.51-10,329.93-4,128.46

Finding the Fourth Proportional to 7,485.51, 10,329.93 and 4,128.46

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Solution

The fourth proportional to 7,485.51, 10,329.93 and 4,128.46 is: 5,697.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.51 : 10,329.93 = 4,128.46 : x
  2. Step 2: Convert to fraction form
    7,485.51/10,329.93 = 4,128.46/x
  3. Step 3: Cross multiply
    7,485.51x = 10,329.93 × 4,128.46
  4. Step 4: Simplify right side
    7,485.51x = 42,646,702.81
  5. Step 5: Solve for x
    x = 42,646,702.81/7,485.51
  6. Step 6: Final answer
    x = 5,697.23

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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.